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Handheld ECG in analysis of arrhythmia and heart rate variability in children with Fontan circulation
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Clinical Physiology.
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2014 (English)In: Journal of Electrocardiology, ISSN 0022-0736, E-ISSN 1532-8430, Vol. 47, no 3, 374-382 p.Article in journal (Refereed) Published
Abstract [en]

Background: Our aim was to evaluate the intermittent use of a handheld ECG system for detecting silent arrhythmias and cardiac autonomic dysfunction in children with univentricular hearts. Methods: Twenty-seven patients performed intermittent ECG recordings with handheld devices during a 14-day period. A manual arrhythmia analysis was performed. We analyzed heart rate variability (HRV) using scatter plots of all interbeat intervals (Poincare plots) from the total observation period. Reference values of HRV indices were determined from Holter-ECGs in 41 healthy children. Results: One asymptomatic patient had frequent ventricular extra systoles. Another patient had episodes with supraventricular tachycardia (with concomitant palpitations). Seven patients showed reduced HRV. Conclusions: Asymptomatic arrhythmia was detected in one patient. The proposed method for pooling of intermittent recordings from handheld or similar devices may be used for detection of arrhythmias as well as for cardiac autonomic dysfunction.

Place, publisher, year, edition, pages
2014. Vol. 47, no 3, 374-382 p.
Keyword [en]
Handheld ECG, Arrhythmia, Heart rate variability, Fontan circulation
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:umu:diva-90080DOI: 10.1016/j.jelectrocard.2014.02.006ISI: 000335712700018OAI: oai:DiVA.org:umu-90080DiVA: diva2:727886
Available from: 2014-06-23 Created: 2014-06-17 Last updated: 2017-12-05Bibliographically approved

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Alenius Dahlqvist, JennyKarlsson, MarcusWiklund, UrbanHörnsten, RolfRydberg, Annika
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